Results 11 to 20 of about 1,184,230 (332)

LOFAR Sparse Image Reconstruction [PDF]

Astronomy & Astrophysics, 2015
Context. The LOw Frequency ARray (LOFAR) radio telescope is a giant digital phased array interferometer with multiple antennas distributed in Europe. It provides discrete sets of Fourier components of the sky brightness.
Anderson, J., Avruch, I., Beck, R., Bentum, M., Best, P., Breitling, F., Broderick, J., Brüggen, M., Butcher, H., Ciardi, B., Corbel, S., de Gasperin, F., de Geus, E., de Vos, M., Duscha, S., Eislöffel, J., el, J., Engels, D., ey, V., ey-Pommier, M., Falcke, H., Fallows, R., Fender, R., Ferrari, C., Frieswijk, W., Garrett, M., Garsden, H., Girard, J., Grießmeier, J., Gunst, A., Hassall, T., Heald, G., Hoeft, M., Hö,, Juette, E., Karastergiou, A., Kondratiev, V., Kramer, M., Kuniyoshi, M., Kuper, G., Mann, G., Markoff, S., McFadden, R., McKay-Bukowski, D., McKean, J., Mulcahy, D., Munk, H., Norden, M., Orru, E., Paas, H., Pietka, G., Pizzo, R., Polatidis, A., Renting, A., Rowlinson, A., Röttgering, H., Schwarz, D., Sluman, J., Smirnov, O., Stappers, B., Starck, J., Steinmetz, M., Stewart, A., Swinbank, J., Tagger, M., Tang, Y., Tasse, C., Tasse, C., Thoudam, S., Toribio, C., van Amesfoort, A., van der Horst, A., van Weeren, R., Vermeulen, R., Vocks, C., Wijnholds, S., Wise, M., Woiselle, A., Wucknitz, O., Yatawatta, S., Zarka, P., Zensus, A.   +81 more
core   +17 more sources

Image Reconstruction in Optical Interferometry [PDF]

IEEE Signal Processing Magazine, 2009
This tutorial paper describes the problem of image reconstruction from interferometric data with a particular focus on the specific problems encountered at optical (visible/IR) wavelengths.
Giovannelli, Jean-François, Thiébaut, Éric   +1 more
core   +12 more sources

Imaging of the Reconstructed Breast

Diagnostics, 2023
The incidence of breast cancer and therefore need for breast reconstruction is expected to increase. The many reconstructive options available and the changing aspects of the field make this a complex area of plastic surgery, requiring knowledge and expertise. Two major types of breast reconstruction can be distinguished: Breast Implants and Autologous
Theodora Kanavou, Dimitrios P. Mastorakos, Panagiotis D. Mastorakos, Eleni C. Faliakou, Alexandra Athanasiou   +4 more
openaire   +3 more sources

Factors modulating 99mTc‐MAA planar lung dosimetry for 90Y radioembolization

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the accuracy and biases of predicted lung shunt fraction (LSF) and lung dose (LD) calculations via 99mTc‐macro‐aggregated albumin (99mTc‐MAA) planar imaging for treatment planning of 90Y‐microsphere radioembolization.
Benjamin P. Lopez, Armeen Mahvash, James P. Long, Marnix G. E. H. Lam, S. Cheenu Kappadath   +4 more
wiley   +1 more source

Feasibility of radical cardiac‐sparing, treatment planning strategies for patients with locally advanced, non‐small cell lung cancer

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose A set of treatment planning strategies were designed and retrospectively implemented for locally advanced, non‐small cell lung cancer (NSCLC) patients in order to minimize cardiac dose without compromising target coverage goals. Methods Retrospective analysis was performed for 20 NSCLC patients prescribed to 60–66 Gy that received a ...
Joshua P. Kim, Jake Dewalt, Aharon Feldman, Khaled Adil, Benjamin Movsas, Indrin J. Chetty   +5 more
wiley   +1 more source

COMP Report: CPQR technical quality control guidelines for use of positron emission tomography/computed tomography in radiation treatment planning

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Positron emission tomography with x‐ray computed tomography (PET/CT) is increasingly being utilized for radiation treatment planning (RTP). Accurate delivery of RT therefore depends on quality PET/CT data. This study covers quality control (QC) procedures required for PET/CT for diagnostic imaging and incremental QC required for RTP.
Ran Klein, Mike Oliver, Dan La Russa, John Agapito, Stewart Gaede, JeanPierre Bissonnette, Arman Rahmim, Carlos Uribe   +7 more
wiley   +1 more source

Image reconstruction through metamorphosis [PDF]

Inverse Problems, 2020
This article adapts the framework of metamorphosis to solve inverse problems in imaging that includes joint reconstruction and image registration. The deformations in question have two components, one that is a geometric deformation moving intensities and the other a deformation of intensity values itself, which, e.g., allows for appearance of a new ...
Barbara Gris, Chong Chen, Ozan Öktem
openaire   +6 more sources

Uniqueness of radiomic features in non‐small cell lung cancer

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The uniqueness of radiomic features, combined with their reproducibility, determines the reliability of radiomic studies. This study is to test the hypothesis that radiomic features extracted from a defined region of interest (ROI) are unique to the underlying structure (e.g., tumor). Approach Two cohorts of non‐small cell lung cancer (
Gary Ge, Jie Zhang
wiley   +1 more source

Multi-frame Image Super-resolution Reconstruction Using Multi-grained Cascade Forest [PDF]

International Journal of Electronics and Telecommunications, 2019
Super-resolution image reconstruction utilizes two algorithms, where one is for single-frame image reconstruction, and the other is for multi-frame image reconstruction.
Yaming Wang, Zhikang Luo, Wenqing Huang
doaj   +1 more source

A small footprint couch‐top support device for image‐guided radiotherapy of heavy patients

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose Patients with body weights close to or above 400 lbs present unique challenges in radiation therapy since the weight limit of most treatment couches decreases as the couch‐top extends toward the treatment gantry. The purpose of this work was to develop a small footprint couch‐top support platform to safely perform image‐guided ...
Huixiao Chen, Kevin Morley, Ronnie Rodriguez, Emily Draeger, Muhammad Shafiq ul Hassan, Zhe (Jay) Chen   +5 more
wiley   +1 more source